Low-light 4K Video Performance - Sony A7 RII vs A7 sII

Very curious in Sony's A7 series latest DSLR cameras primarily for their real time 4K video low-light abilities. Can somebody in the know chime in about the low-light abilities (again 4k video) for the Sony A7R II vs the A7 SII?

Slog3 will show up more noise in the shadows because its a high DR log curve ..compared to standard gamma,s.. it will go away when graded .. if there was at least enough light for Slog to get a decent exposure.. !

The A7sII is the camera to use for low-light 4K. The pixels are more than triple the size of the A7rII, so you'll get a lot less noise in the very dark. But exposure is still important, of course, so don't go shooting two stops under and expecting miracles.